CN112806131A

CN112806131A - Seed discharging mechanism of rice precision hill planter

Info

Publication number: CN112806131A
Application number: CN202110187272.7A
Authority: CN
Inventors: 朱景建
Original assignee: Huzhou Vocational and Technical College
Current assignee: Huzhou Vocational and Technical College
Priority date: 2021-02-18
Filing date: 2021-02-18
Publication date: 2021-05-18
Anticipated expiration: 2041-02-18
Also published as: CN112806131B

Abstract

The invention discloses a seed discharging mechanism of a rice precision hill planter, which comprises a driving mechanism, a conveying belt, seed storage boxes, a throwing station, a control structure and a transmission assembly, wherein the conveying belt is horizontally arranged and driven by the driving mechanism to operate, the seed storage boxes are fixed on the conveying belt and are arranged along the length direction of the conveying belt, the throwing station is sequentially arranged by the seed storage boxes, the control structure is arranged at the throwing station, the transmission assembly is in transmission connection with the driving mechanism, an opening allowing seeds to fall into is formed in the top of each seed storage box, and the transmission assembly can periodically drive the control structure to open or keep closed the bottom of each seed storage box sequentially arranged by the throwing station along with the operation of the driving mechanism.

Description

Seed discharging mechanism of rice precision hill planter

Technical Field

The invention relates to the field of rice seeders, in particular to a seed discharging mechanism of a rice precision hill planter.

Background

The direct seeding cultivation technique of rice is a cultivation method that rice seeds are directly sown in a field without raising seedlings and transplanting; compared with the rice cultivation, the technology simplifies the rice cultivation process, has the advantages of reducing labor intensity, alleviating season contradiction, saving labor, saving seedling bed, high yield and high efficiency, and the like, and is gradually an important cultivation mode for rice production at present.

Most of the current rice seeders are purely mechanical, the control accuracy of the quantity of rice grains sowed in each hole is not high, and the sowing quality is influenced by more or less seeds, so that the yield of rice is directly influenced.

The prior Chinese patent application No. CN201810078116.5 discloses a rice precision hill planter, which comprises a frame, and further comprises a grain feeding setting area, a counting screening area, a rotary conveying area and a funnel grain discharging area which are arranged on the frame from top to bottom, wherein at least one group of the grain feeding setting area, the counting screening area, the rotary conveying area and the funnel grain discharging area is arranged; the particle feeding setting area comprises a feeding hole, a sliding setting plate and a particle feeding brush, the sliding setting plate is obliquely arranged, the feeding hole is positioned above the upper end of the sliding setting plate, and the particle feeding brush is positioned above the lower end of the sliding setting plate; the counting and screening area is positioned below the grain conveying brush and comprises a counting induction area at the upper end and a screening control area at the lower end; the rotary conveying area is located screening control area below, every group the rotary conveying area includes two conveying discs of installing side by side, just conveying disc pivot level sets up, adopt the hill planter of this kind of structure, can control the quantity of each cave seeding rice grain accurately to improve the output of rice, but still have the defect, every storeroom sets up a little valve in the above-mentioned scheme, open or close the opening of storeroom through the control of motor during the seeding, more valve control is more complicated on the one hand, by the external impression factor of automatically controlled mode too much, control is not so reliable relatively, the easy mistake that appears, and then lead to the seeding volume control error.

Disclosure of Invention

The invention provides a seed outlet mechanism of a rice precision hill planter, which realizes the opening and closing of a storage chamber by adopting a mechanical structure control mode, can effectively improve the reliability of channel seed outlet, realizes the precise control of the seeding quantity, and further improves the yield of rice.

The invention is realized by the following technical scheme:

the utility model provides a smart volume hill-drop planter's of rice play kind of mechanism, includes actuating mechanism, horizontal arrangement and orders about the conveyer belt of operation by actuating mechanism, fixes at the conveyer belt and along its length direction arranged seed storage box, by the input station that seed storage box loops through, set up the control structure who puts in the station, with the drive assembly of control structure and actuating mechanism transmission connection, the top of seed storage box has the opening that allows the seed to fall into, drive assembly can order about periodically along with actuating mechanism's operation the control structure will loop through the bottom of the seed storage box of input station and open or keep sealing.

The principle of the invention is that a plane rotary moving conveyor belt is arranged as a carrier of a seed storage box, all openings of the seed storage box can be upward, a bottom plate of the seed storage box is arranged as a cut-off plate to realize the storage and the falling of rice seeds, a control component which is related to the movement of the conveyor belt is arranged to control the opening and the closing of the cut-off plate, when the conveyor belt starts to sow, the control component is switched to a state that the cut-off plate can be opened along with the movement of the conveyor belt, the rice seeds continuously fall from the seed storage box and enter a seed hole, when the sowing is finished and the seed storage is started, the control component is switched to a state that the cut-off plate can not be opened along with the movement of the conveyor belt, the seed storage box starts to sow, when the rice seeds are fully stored and need to sow again, the control component is switched again, the circular switching of the seed storage box under the sowing state and the seed storage state is repeatedly realized, compared with the prior art in which an electric control mode is adopted, the mode adopting a mechanical structure is more reliable, external influence factors are fewer, deviation is not easy to occur, so that the accuracy of seeding can be effectively improved, the occurrence of a cavity caused by the failure of a seed storage box switch is avoided, the yield of rice is further improved, in addition, two states of seed throwing and seed receiving exist in the conveyor belt, the conveyor belt moves at a constant speed when the conveyor belt is in the seed throwing state, the conveyor belt moves intermittently when the conveyor belt is in the seed receiving state, the moving speed does not move at a constant speed, the state of controlling the structure to open or close the opening and closing plate is only related to the rotating distance of the conveyor belt, the transmission angle of the transmission assembly is only related to the transmission speed, no matter whether the conveyor belt rotates at a constant speed or at an intermittent speed, the conveyor belt can be ensured to receive full seeds and switch to the, therefore, the accuracy of seeding can be more accurately ensured.

As a further improvement of the invention, the bottom of the seed storage box is provided with a split plate which is rotatably connected with the seed storage box.

Preferably, the opening-closing plate is arranged at the bottom of the seed storage box, so that the seed storage box can be opened and sowed when passing through the putting station.

As a further improvement of the invention, the control structure is a special-shaped wheel capable of rotating around a fixed central axis, an up-and-down through avoiding opening is arranged at the central part of the special-shaped wheel, a support structure is arranged in the avoiding opening, and the support structure can be separated from the opening plate through rotation to enable the opening plate to turn over and open the seed storage box or support the opening plate so that the opening plate cannot be opened.

Preferably, adopt the special-shaped wheel as control structure, set up in the middle of the special-shaped wheel and dodge the mouth, make the open-close plate can open through dodging the mouth and broadcast the seed, and set up bearing structure, make it can break away from the open-close plate or hold the open-close plate through the rotation, thereby make the open-close plate can open at the input station when the seeding and sow, when advancing the input station when receiving the seed, bearing structure can support the open-close plate and make it unable to open, the seed can not drop, thereby realize the switching of two kinds of states.

As a further improvement of the invention, the special-shaped wheel is in transmission connection with the transmission piece through a toothed meshing structure.

The drive wheel that preferably adopts and pass through the meshing of dentate engagement structure with the conveyer belt drives the conveyer belt, carries out the transfer rate of the control conveyer belt that the transmission can be accurate by the tooth meshing, and the transmission ratio of tooth meshing is higher relatively simultaneously, and transmission precision is also higher relatively, can effectively avoid the conveyer belt phenomenon such as skidding to appear in data send process to cause transmission error to influence the operation of whole mechanism.

As a further improvement of the invention, the transmission assembly is of a planetary gear structure, and a sun gear of the planetary gear is fixedly connected with the driving mechanism.

As a further improvement of the invention, the planet carrier of the planetary gear is in a flat connecting rod structure, two ends of the connecting rod are arranged in a fan shape and are provided with tooth-shaped structures, and the connecting rod is periodically in transmission connection with the control structure.

Preferably adopt the planetary gear structure as drive assembly, multistage transmission of realization that planetary gear compact structure can be better, make whole play kind of device structure compacter occupation space littleer, and planetary gear can be through the direct actuating mechanism fixed connection with the drive belt of sun gear, realize synchronous motion, thereby get up the motion of control structure and drive belt associativity, thereby realize the accurate function of planting of conveyer belt, adopt planetary gear structure in addition and can directly set up the driving medium on planetary gear structure, realize the intermittent control to control structure, need not additionally newly-increased transmission structure, on the one hand can make the structure of device simpler, on the other hand can reduce the space that the device occupy.

As a further improvement of the invention, an installation plate is arranged below the conveyor belt, a through hole for allowing the control structure to pass through is formed in one end of the installation plate, and the control structure is rotatably arranged in the through hole.

Preferably set up the mounting panel under the conveyer belt, the effect of mounting panel lies in the installation control structure on the one hand, and on the other hand, the mounting panel can support and lean on the opening-closing plate after storage kind box follows the conveyer belt and roll out control structure for storage kind box can be in the normally closed state all the time, just can store up kind when kind of rice drops.

In a further improvement of the present invention, the opening plate is connected to the seed storage box in a hinged manner and is rotatable about an axis perpendicular to a moving direction of the seed storage box in a plane of rotation of the conveyor belt, and the hinge portion is formed on a side closer to a front end when the seed storage box moves.

Preferably, adopt articulated mode to connect division board and seed storage box, articulated is the most common connected mode that realizes opening and shutting each other between two articles, simple structure, simple to operate.

As a further improvement of the invention, the front end edge of the avoiding opening along the moving direction of the seed storage box is formed with a circular arc edge.

Preferably, the opening position is provided with the arc-shaped edge, friction exists between the opening position and the opening plate in the repeated opening and closing process of the opening plate, and the abrasion of the opening plate is easily caused by long-time friction, so that the arc-shaped edge is arranged to be relatively smooth, no part protruding particularly is arranged, the abrasion of the opening plate is reduced, and the service life of the opening plate is prolonged.

The invention has the beneficial effects that:

(1) the seed storage boxes are switched between the open state and the closed state by the aid of the associated movement of the conveying belt and the control structure, so that the seeding and the seed storage filling of the seed discharging mechanism are switched.

(2) The planetary gear structure is adopted as the transmission assembly, the function of multi-stage transmission can be realized, the structure of the whole seed discharging mechanism is more compact, and therefore the occupied space of the seed discharging mechanism in equipment is saved.

Drawings

FIG. 1 is a rice precision hill planter incorporating the present invention;

FIG. 2 is a schematic diagram of a detailed structure of the feed setting mechanism in FIG. 1;

FIG. 3 is a view showing the feed setting mechanism, the connecting passage, the conveying mechanism and the discharging mechanism of FIG. 1 being assembled together;

FIG. 4 is an assembly view of the reversing mechanism and connecting channel of the present invention;

FIG. 5 is a schematic view of the specific structure of the reversing mechanism of the present invention;

FIG. 6 is an assembly view of the connecting channel and mating structure;

FIG. 7 is a schematic structural diagram of a seeding mechanism;

fig. 8 is a partial schematic view of fig. 7.

Detailed Description

Referring to fig. 1, a rice precision hill planter with a seed outlet mechanism of the present invention comprises a frame 1, and at least one station arranged in parallel on the frame, wherein each station comprises a seed inlet setting mechanism 2, two sets of conveying mechanisms 3, a connecting mechanism 4 connecting the seed inlet setting mechanism 2 and the conveying mechanisms 3, and a seed outlet mechanism 5, at least one mounting rack 11 is detachably fixed on the frame 1, the seed inlet setting mechanism 2 is used for arranging stored seeds so that the seeds can slowly and orderly fall into the conveying mechanisms 3, the connecting mechanism 4 is a connecting channel for conveying the seeds in the seed inlet setting mechanism 2 to the conveying mechanisms 3, the conveying mechanisms 3 are used for conveying the seeds to the seed outlet mechanism 5 and sowing, with reference to fig. 2, the seed inlet setting mechanism 2 comprises a vibration mechanism 21 and a seed box 22, the vibration mechanism 21 is fixed on the frame 1, and is located above the mounting frame 11, the seed box 22 is fixed on the vibrating mechanism 21, the seed outlet end of the seed box 22 is horizontally provided with a guide plate 23, the guide plate 23 is provided with four linear guide grooves 231, a partition plate 24 is arranged between the guide plate 23 and the seeds, the partition plate 24 is provided with several rows of through holes 241, each row of through holes is provided with four, preferably four, linear guide grooves are provided, and the partition plate is provided with through holes with a number matched with the number of the linear guide grooves in the transverse direction, when the hill-drop planter starts to work, the vibrating mechanism is driven by the motor to vibrate, the seeds in the seed box fall into the guide plate through the through holes under continuous vibration, meanwhile, because the vibration is orderly arranged in the linear guide grooves, the number of the seeds falling into the conveying mechanism can be controlled by adjusting the vibration frequency of the motor, and the number of the seeds in each seed cavity is controlled to be optimal within 3-5 in order to improve, set up linear guide into four, through the quantity that the adjustment control seed to vibration frequency dropped, four seeds that once drop under the most ideal state, even if there is a linear guide groove not to drop the seed or dropped the seed more, the seed quantity that drops on the conveyer belt at every turn still can be guaranteed in better state, can improve the accuracy nature of seeding quantity effectively.

Referring to fig. 3 and 4, the conveying mechanism 3 is arranged below the seed feeding setting mechanism 2, the two groups of conveying mechanisms 3 are two groups of conveying belts 31 which are arranged side by side up and down and are conveyed horizontally, the conveying belts are driven by a driving motor 32 and two transmission gears 33, the transmission gears 33 are rotatably fixed on the mounting rack 11, a plurality of clamping grooves 311 are arranged on the outer surface of each conveying belt 31 side by side along the length direction, a seed storage box 34 is clamped on each clamping groove 311, the seed storage box 34 has an upward opening, and the bottom is hinged with an opening plate 341, preferably, a gear is adopted for transmission, the gear transmission can control the conveying angle of the conveying belts according to the number of teeth, the conveying belts can be ensured to rotate exactly one seed storage box once, the seed is ensured not to fall off in the conveying process, the connecting mechanism 4 comprises a detecting part 41 and a control part 42, the detecting part 41 is connected with the seed

feeding setting mechanism

2, and 3 partitions 411 are disposed at the upper end of the detecting portion 41 to divide the connecting mechanism 4 into four through openings, and two sides of each through opening are provided with sensors 412 for calculating the number of passing seeds, when the number of passing seeds reaches a set value, the conveyor belt turns to the next seed storage box, and the connecting mechanism is divided into four through openings, so that the seeds can fall dispersedly, the sensing accuracy of the sensors is improved, and the possibility of missing detection is reduced to a large extent, the lower end of the connecting mechanism 4 is provided with two output ports 421 with a long end and a short end, which are respectively communicated with the seed storage boxes 34 on the two conveyor belts 31, the connecting mechanism 4 is provided with a reversing mechanism 6, preferably, the conveying mechanism 3 is provided with two sets of conveyor belts 31, when the hill-drop planter starts to work, when one set of conveyor belts turns round, each seed storage box stores seeds, the reversing mechanism reverses, the other group of the conveyor belts starts to store seeds, the conveyor belts full of the seeds start to discharge the seeds through the seed discharge mechanism to sow the seeds into the seed holes, the falling of the seeds is controlled by vibration, the quantity of the discharged seeds can be controlled more accurately, but the speed of seed falling can not be controlled, the time interval of each seed falling is necessarily fast or slow, this also determines that the speed of the conveyor belt is not uniform when the seeds are being stored, while the drive equipment of the hill-drop planter is running at a constant speed, if the seeds are sown simultaneously on the conveyor belts, there will be a situation of cavities, and it is therefore preferred to provide two sets of conveyor belts, one for the seeds, the other for the sowing, therefore, a group of conveying belts which can independently control seeding can run at a constant speed, and the two groups of conveying belts store seeds and sow the seeds continuously and alternately, so that the efficiency is improved, and the occurrence of the cavity condition can be effectively avoided.

With reference to fig. 5, the reversing mechanism 6 is disposed on the control portion 42, the reversing mechanism 6 includes the connecting member 61 and the blocking member 62 sleeved outside the connecting mechanism 4, preferably, the connecting member 61 is configured as a connecting frame, the blocking member 62 is configured as a swinging plate, the connecting member 61 is provided with a mounting shaft 611, the mounting shaft 611 is inserted on the connecting mechanism 4 and is located between the two output ports 421, the blocking member 62 is hinged on the mounting shaft 611, and a portion of the blocking member 62 extends from the bottom of the connecting mechanism, the lower surface of the connecting member 61 near one end of the upper layer conveyor belt is provided with a protruding portion 612, one of the seed storage boxes on the upper layer conveyor belt is provided with a first matching structure 342 matched with the protruding portion 612, the protruding portion 612 and the first matching structure 342 are semicircular protruding blocks, and a surface where the two contact is configured as an arc surface, when the first matching structure 342 rotates to the reversing mechanism 6, the first matching structure 342 is matched with the protruding part 612 to jack up the protruding part 612, so that the connecting rod frame tilts backwards to drive the swinging plate to tilt backwards along with the connecting rod frame simultaneously to realize the function of replacing the channel, the arrangement of the arc surface enables the matching of the first matching structure and the connecting rod frame to be smoother, the first matching structure can smoothly jack up the connecting rod frame along the arc surface, it needs to be explained that the first matching structure can also be arranged on the belt conveyor, only the requirement that the belt conveyor rotates for a circle is met, the first matching structure can realize one-time reversing through the reversing mechanism, the arrangement in the seed storage box has the advantages that the belt conveyor does not need to be additionally provided with other structures to install the first matching structure, the manufacturing process of the seed storage box is simpler compared with the manufacturing process of the seed storage box, and the first matching structure arranged on the seed storage box can effectively simplify the manufacturing, be provided with on one of them seed storage box of lower floor's conveyer belt with baffler 62 matched with second cooperation structure 343, second cooperation structure 343 is the semi-cylinder of vertical setting, and its face that contacts with the wobble plate is the arc surface, works as when second cooperation structure 343 changes to reversing mechanism 6, and its arc surface and wobble plate contact promotion wobble plate incline forward to switch the passageway to lower floor's conveyer belt, thereby realize through two cooperation structures and reversing mechanism's cooperation that the continuous switching of wobble plate in coupling mechanism forms the circulation of two conveyer belts and switches over the use.

Referring to fig. 5 and 6, the other end of the connecting member 61 is provided with a positioning structure 7, the positioning structure 7 is an elastic pin inserted on the connecting member 61, one end of the elastic pin, which is close to the connecting mechanism 4, is provided with an arc surface, the connecting mechanism 4 is provided with a fixing hole site 44 for fixing the elastic pin, the elastic pin is clamped with the two fixing hole sites, when the first matching structure jacks up the connecting rod frame, the inclined elastic pin of the connecting rod frame slides out from one of the fixing hole sites into the other fixing hole site under a stress condition, so that the inclined rear position of the connecting rod frame can be fixed without rotation, when the second matching structure pushes the swinging plate to incline forwards, the swinging plate drives the connecting rod frame to incline forwards, the elastic pin is stressed out of the fixing hole site again to return to the first fixing hole site to fix the connecting rod frame, the elastic pin is positioned, and the reversing mechanism can be fixed in position, the channel switching instability caused by the rotation can not occur.

With reference to fig. 3, 7 and 8, the seed discharging mechanism 5 is disposed at the other end opposite to the gear shifting mechanism 6, and is provided with a throwing station, the throwing station is provided with a control structure 51 for being in transmission connection with the transmission gear 33 of the conveyor belt 31 and controlling the opening and closing of the opening plate 341, the control structure 51 is in transmission connection with the transmission gear 33 through a transmission assembly 52, the transmission assembly 52 is a planetary gear, a sun gear of the planetary gear is fixedly connected with the transmission gear 33 of the conveyor belt 31, so that the sun gear of the planetary gear and the transmission gear of the conveyor belt can synchronously rotate, a planet carrier of the planetary gear is provided with a flat link structure, two ends of the link are fan-shaped and provided with tooth openings to be in transmission connection with the control structure 51, so as to realize the periodic movement of the control structure 51, control structure 51 is the dysmorphism wheel, specifically is a special-shaped gear, through the meshing of tooth mouth with the transmission of intermittent type actuating mechanism is connected, set up in the middle of the control structure 51 about the through-going open-close plate dodge mouthful 511, it sets up to the square to dodge mouthful 511, inwards sets up the salient angle respectively at four angles of square as the bearing structure 512 of open-close plate 341, and every 45 bearing structure that rotates of special-shaped gear can break away from or hold open-close plate 341 just for seed or put in the seed can be accepted to the kind of storage kind box, adopts such special-shaped gear as control structure, simple structure, and the preparation is convenient, and the opening and closing of specific open-close plate are realized like this: when a driving motor of the conveyor belt drives the conveying gear to rotate, the sun gear of the planetary gear synchronously rotates to serve as a driving part in the planetary gear system, the sun gear rotatably engages with the planetary gear and the gear ring, so that the planetary carrier rotates, the planetary carrier passes through the tooth opening and the control structure, namely, the special-shaped gear is engaged, the special-shaped gear is stirred to rotate while the planetary carrier rotates, through designing the transmission ratio of the gear, when the conveyor belt rotates for one circle, the planetary carrier rotates for half a circle under the speed reduction action of the planetary gear, the tooth number of the gear sector of the planetary carrier just can stir the special-shaped gear to rotate for 45 degrees, the special-shaped gear just rotates for 45 degrees, the supporting structure is just separated from or supports the split plate 341, the conveyor belt continuously rotates, the special-shaped gear just synchronously switches, and the conveyor belt rotates for one circle, the special-shaped gear is switched once, so that the opening and closing of the opening and closing plate, and the switching of the seed storage and discharge states of the conveyor belt are realized.

In order to avoid the friction between the opening plate and the edge of the opening position during the repeated opening and closing processes of the opening plate, the front end edge of the opening position along the moving direction of the seed storage box is preferably arranged into a circular arc structure.

The below of conveyer belt 31 is provided with mounting panel 8, through-hole 81 has been seted up on the mounting panel 8, control structure sets up in the through-hole 81 to can be rotatory around self axis in the through-hole 81, seed storage box 34 is in the mounting panel 8 top removes, and mounting panel 81 can make seed storage box 34 be in normally closed state when not giving out the mechanism department, is used for storing the seed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments can be modified, or some technical features can be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a smart volume hill-drop planter's of rice play kind of mechanism which characterized in that, includes actuating mechanism, horizontal arrangement and drives the conveyer belt of operation by actuating mechanism, fixes at the conveyer belt and along its length direction arranged seed storage box, put in the station by the seed storage box loop through, set up the control structure who puts in the station, with the drive assembly of control structure and actuating mechanism transmission connection, the top of seed storage box has the opening that allows the seed to fall into, drive assembly can periodically order about along with actuating mechanism the control structure will loop through the bottom of the seed storage box who puts in the station and open or keep sealing.

2. The seed outlet structure of the rice precision hill planter according to claim 1, wherein: the bottom of the seed storage box is provided with an opening plate which is rotatably connected with the seed storage box.

3. The seed discharging mechanism of the rice precision hill planter according to claim 2, wherein: the control structure is one kind and can carries out the special-shaped wheel that rotates around fixed the central axis, the central point of special-shaped wheel is equipped with the mouth of dodging that link up from top to bottom, it is provided with bearing structure in the mouth to dodge, bearing structure can break away from through rotating the open-close plate makes the open-close plate upset open store up kind of a box or support and live the open-close plate makes it can't open.

4. The seed discharging mechanism of the rice precision hill planter according to claim 3, wherein: the special-shaped wheel is in transmission connection with the transmission part through a toothed meshing structure.

5. The seed discharging mechanism of the rice precision hill planter according to claim 4, wherein: the transmission assembly is of a planetary gear structure, and a sun gear of the planetary gear is fixedly connected with the driving mechanism.

6. The seed discharging mechanism of the rice precision hill planter according to claim 5, wherein: the planet carrier of the planetary gear is in a flat connecting rod structure, two ends of the connecting rod are fan-shaped and provided with tooth-shaped structures, and the connecting rod is in periodic transmission connection with the control structure.

7. The seed discharging mechanism of the rice precision hill planter according to claim 1, wherein: the conveying belt is provided with a mounting plate below, one end of the mounting plate is provided with a through hole for the control structure to pass through, and the control structure is rotatably arranged in the through hole.

8. The seed discharging mechanism of the rice precision hill planter according to claim 2, wherein: the opening plate is connected with the seed storage box in a hinged mode and can rotate around an axis which is vertical to the moving direction of the seed storage box in a rotating plane relative to the conveying belt, and the formed hinged part is positioned on one side close to the front end when the seed storage box moves.

9. The seed discharging mechanism of the rice precision hill planter according to claim 3, wherein: the avoiding opening is provided with a circular arc edge along the front end edge of the moving direction of the seed storage box.